Switch



June 3,1930. F. SLADY 1,761,803

SWITCH Filed June 26, 1925 w W 2% a 2a j z i Z' f.

OZQM INVENTOR.

' W ATTORNEYS.

Patented .lune 3, 19%

UNITED STATES- lh xrlacrr OFFICE FRANK SLADY, OF BROOKLYN, NEW YORK,ASSIGNOR 1'0 LEVITON MANUFACTURING- COMPANY, OF BROOKLYN, NEW YORK, AOOPABTNERSHIP CONSISTING OF ISIDOR LEVITON AND EVSEB LEVITON. BOTHOF-BROOKLYN, NEW YORK SWITCH Application filed June 26, 1925. semi m.39,685.

This invention relates to a switch that is especially suitable forelectric light sockets. By this invention the circuit may be posltivelyopened by a snap action which willto snap the switch into the respectiveposi-.

15 tions.

' The invention will be understood from the description in connectionwith the accompanying drawings, in which Fig. 1 is a vertical sectionthrou h the device; Fig. 2 is a 20 plan view, partly roken away; Fig. 3is a view .from the bottom of the switch head; Figs. 4, and 6 show someof the details; and Fig. 7 shows a spring contact member.

In the drawings, reference character 1 in- 25 dicates a screw shell ofthe usual sort, which is provided with an inwardl extending flange 2 atits upper end. The ange 2 is held to the head 3 of insulating material,such as porcelain, for example, by means of the bolts 30 4 and 5, thebelts passing through the flange 2 with their heads restingthereagainst, and

with their screw-threaded ends passing through nuts or clips in theusual manner.

The bolt 5 screws into theclip 6 that is located in a recess in the head3, and this clip is provided with a binding screw 7 for connecting oneside of an electric circuit to the bolt 5, and thence to the screw shell1, as is well-known in this art.

A washer 80f insulating material is interposed between the flange 2 ofthe screw shell 1 and theinsulating head 3. The washer 8 carries a tipcontact 9 for the center contact of the lamp, and this tip contact 9passes through a hole 10 in the washer 8, the metal thereof being bent,into a spring 11 on the upper side of the washer 8, for a purpose to bedescribed. The head 3 is provided with a transverse slot 12, in eachside wall of which 5 is a. longitudinal recess 13 terminating in an abrut shoulder 14. The head 3 is also .pro-

vide in the upper wall of the slot 12 with a V-shaped hole 15, which isrectangular in cross section. Transverse ribs or rounded shoulders15extend across the slot 12 at the sides of the hole 151 A spring contactmember 16 (Fig. '3") is seated in a recess 17 on the bottom face of thehead 3, and a bolt 18 attaches this spring contact to a clip 19 seatedin a recess in the head 3. The clip 19 is provided with a binding screw20 for the other side of the electric circuit.

A switch member 21 (Figs. 1 and 4) is provided with a lateral extension22 on each edge.

- The switch 21 has a rib or projection 23 on its lower side alined withthe projections 22, and the rounded outer'edge of this rib 23 bearsagainst the spring 11. A push rod or bar 24 (Figs. 1 and 5) extendstransversely through the slot 12. This push rod is provided with roundedends 25 of insulating material and its intermediate portion ispreferably made of flat metal having a hole 26 therethrough. A T-shapedmember 27 has a rectangular shaped shank and a cross head 28, the shank27 extending into the hole 15 in the head 3, and the cross head 28resting upon the top side of the switch member 21, as most clearly shownin Fig. 1.

In the particular form of the spring contact member shown in Fig. 7, thecontact portion 9' is adapted to contact with the center contact of thelamp, and the curved portion parts are in the position indicated in Fig.1,

the switch is open, and the rod 24 may be pushed toward the left toclose the switch. This causes the member 27, whose shank extends intothe hole 15 and is prevented from turning axially therein, to tilttoward the left with its cross head 28 sliding upon the top side of theswitch member 21. The projections 22 extendin into the recesses 13prevent the switch mem er 21 from moving longitu dinally, but permit thesame to turn upon these extensions 22 which serve as a pivot therefor."As soon as this cross head 28 passes to the left beyond a pointopposite the 23, the spring 11 pushing upwardly on this nb 18, contactmember'16, switch member. 21,

sprin 11 to the center contact 9, the remainder the circuit beingthrough the lamp and screw shell 1, as usual. When. it is desired toopen-the circuit, the push rod 24 is pushed to the right, whereuponthecross head 28 passes to the right of a point opposite the rib 23, thuscausing the spring 11 to throw the switch member 21 intotheposition'indic'atedv in Fig. 1. The walls of the opening 15 are not madesufiiciently flaring to permit the .push rod 24 to carry the member 27to either side a sufiicient' distance to permit the push rod 24 to beentirely withdrawn.

I claim:

1. In a switch, the combination of a switch member, spring means forpressing against one side of said member, and operating meanslongitudinally movable with respect to said switch member to oppositesides of the point where said spring means presses.

2. In a switch, the combination of a switch member, means for pressingagainst one side of said member, and operating means slidab'le along theother side of said switch member to each side'of said pressing means.

3. In a switch, the combination 0f.a switch member, a spring pressingagainst one side of said member, and operating means longitudinallymovable with respect to said switch member to each side of said spring.

4. In a switch, the combination of a switch member provided with aprojection thereon, spring means for pressing against said projection,and operating means longitudinally movable with respect to said switchmember. 5. In a switch, the combination of a switch member fulcrumedintermediate its ends, means to prevent said member from movinglongitudinally, spring means for pressing agalnst one side' of saidmember, and operating means longitudinally movable with respect to saidswitch member to opposite sides ofthe point where said spring meanspresses.

6. In a switch, the combination of a switch member, spring means forpressing against one side of said member, and longitudinally movablemeans to operate said switch member, said last named means being movableto opposite sides of the point where said spring means presses.

7. In a switch, the combination of a fulcrumed switch member free atbothends, means for pressing against one side of said member, and meanslongitudinally movable to opposite sides of the fulcrumed point tooperate said switch member, said movable means comprising a pivotedmember.

said first means presses to operate said switch member, said movablemeans comprising a pivoted member and a transverse bar.

10. In a switch, the combination of a switch member'free at both ends,means for pressing against one side of said member, and meanslongitudinally movable to opposite sides of the point where said firstmeans presses to voperate said switch member, said movable meanscomprising a pivoted member, and an insulating head in which said switchmember and said pivoted member are housed.

11. In a switch, the combination of a switch member having a projectionon one face thereof, said switch member having both ends free,

means for pressing on the other face thereof at either side of saidprojection, and means to prevent longitudinal displacement'of saidswitch member.

12. In a switch, a flat elongated switch member having projectionson itsedges and a projection on one face in line with said first 1 namedprojections, and means for pressing on the other face of said switchmember at either side of said last named projection.

' 13. In a switch, a flat elongated switch member having projections onits edges-and a projection on one face in line with said first namedprojections, and means for pressing on the other face of said switchmember at either side of said last named projection, said meanscomprising a member pivoted atone end with its other end .in engagementwith the face ofsaid switch member.

14. In a switch, a flat elongated switch member having projections onits edges and.

a projection on one face in line with said first named projections,resilient means pressing against said projection, and means for pressing on the other face of said switch member at either side of said-lastnamed projection.

15. In a switch, a switch member having a fulcrum, a spring bearingagainst said fulcrum, and a pressure member bearing against said switchmember on the side opposite said fulcrum and movable across saidfulcrum. FRANK SLADY.

